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Equipment Reviews

Ultra Audio's site platform was changed in August 2010. For equipment reviews previous to that, use this link to transfer to the old site.

Linear Tube Audio ZOTL40 Mk.II Stereo Amplifier

Written by: Vade Forrester
Created: 15 December 2016

In February 2014, when I reviewed the David Berning Company’s ZH-230 power amplifier for SoundStage! Ultra, I instantly fell in love with it. Its sound consigned to the scrap heap -- or at least to the closet -- every other amplifier I’d tried in my system. This tubed design eschewed the output transformers used in virtually every other tube amplifier in the world, and which are responsible for lots of sonic problems. Everyone who heard it agreed that the sound was just splendid, and its 30Wpc easily drove my sensitive horn speakers.

Read more …

Synergistic Research PowerCell 12 UEF SE Power Conditioner

Written by: Howard Kneller
Created: 01 December 2016

Reviewers' ChoiceIn 2003, I asked a representative from Synergistic Research why, unlike many other cable manufacturers, the company didn’t make a power conditioner. The rep stated that, despite Synergistic’s many models of interconnect, speaker cable, and power cord, head designer Ted Denney had yet to discover a power-conditioning technology he thought worth developing. According to the rep, only when Denney had found something that he thought would move the field forward would he put the Synergistic name on it.

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van den Hul Crimson Stradivarius Phono Cartridge

Written by: Tom Mathew
Created: 15 November 2016

Just before he left for college, my son turned me on to a TV show that’s become my new binge-watching passion. Netflix’s Chef’s Table is a visual and gustatory feast, and the first episode introduced me to the culinary talents of Massimo Bottura, chef of the three-Michelin-star Osteria Francescana, in Modena, Italy. On the short list of objects in my house that are getting or have gotten better with age are a 1989 bottle of Krug Champagne, my cast-iron frying pan, my wife’s red hair, and a bottle of Manodori -- Bottura’s meticulously crafted, perfectly aged balsamic vinegar. Drizzled over risotto, shaved Parmigiano-Reggiano cheese, arugula, or fresh-picked berries, Manodori’s complex, multilayered taste is a perfect example of how well certain things in life can age.

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Devialet Expert 1000 Pro Mono DAC-Integrated Amplifiers

Written by: Jeff Fritz
Created: 01 November 2016

Reviewers' ChoiceAudiophiles can instantly tell the difference between a traditional high-end component and a “lifestyle” product. It’s either one or the other, and until recently, their paths did not intersect. In fact, the death knell for a new product’s credibility in the audiophile community was rung as soon as the word lifestyle appeared anywhere in its vicinity.

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Audience adeptResponse aR6-TSSOX Power Conditioner

Written by: Garrett Hongo
Created: 15 October 2016

Reviewers' ChoiceWhat is the true foundation of a seriously good audio system? I’ve heard very knowing people say that speakers set the character of the sound. Others argue that the amplifier is the key, as its power range and operating characteristics might also determine everything else. But, to more than a few, the true heart of any audio system is the preamp. Finally, there are those who insist that it’s source equipment -- the turntable, tonearm, and cartridge, or the digital player and/or DAC -- that determines each of our stereophonic fates. Yet before any of these essential components can contribute anything to the audio chain, it’s the power we get from our wall outlets that drives all else. No matter the quality and prowess of our vaunted audio purchases, saith a happy few, we won’t be able to realize the full capabilities of any of them without clean, reliable electricity.

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Audio Physic Avanti Loudspeakers

Written by: Roger Kanno
Created: 01 October 2016

Reviewers' ChoiceWhen the SoundStage! Network’s Editor-in-Chief, Jeff Fritz, asked if I’d be interested in reviewing a speaker from Audio Physic, I knew little about the German company other than that they’d been around for a while and had produced some highly regarded loudspeakers. I typically review more modestly priced speakers, primarily from North American manufacturers. And while I knew that Audio Physic was well established, I hadn’t known that they’ve been around long enough to have celebrated their 30th anniversary in 2015.

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High Fidelity Cables CT-1 Ultimate Digital Link, Interconnects, Speaker Cables, and Power Cords

Written by: Vade Forrester
Created: 15 September 2016

Reviewers' ChoiceNearly every audio journalist I know hates to review cables. Aside from their being lazy buggers, there are some good reasons they feel that way: 1) cables sometimes require lengthy break-in, and manufacturers aren’t always helpful about specifying a break-in time; 2) the differences in sound between cables are sometimes minuscule; 3) cables can sound different from a reviewer’s reference cables without sounding better or worse; and 4) cables’ sound may be system-dependent. But occasionally, a set of cables comes along that sounds so different -- and, sometimes, better -- that we find ourselves coaxed into reviewing another set of cables.

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Gryphon Audio Designs Diablo 300 Integrated Amplifier-DAC

Written by: Hans Wetzel
Created: 01 September 2016

Reviewers' Choice“Have fun dancing with the Devil.”

It’s the sort of line a B-movie bad guy would growl. It’s not the sort of sign-off you expect to see at the end of an e-mail from the founder and CEO of a high-end audio manufacturer. Yet Flemming E. Rasmussen, of Gryphon Audio Designs, in Denmark, had written just that in confirmation of my receipt of his company’s Diablo 300 integrated amplifier. If it were any other manufacturer, I’d have rolled my eyes and moved on. But Gryphon’s creations are bold and unusual looking, and I’d waited a long time to review one. I chuckled. Nervously.

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Constellation Audio Inspiration Stereo 1.0 Amplifier

Written by: Aron Garrecht
Created: 15 August 2016

Reviewers' ChoiceImmediately before putting fingers to keypad for this review, I spent a considerable amount of time reviewing Constellation Audio’s Inspiration Preamp 1.0 ($9900 USD). I began that review by touching on the company’s lineage, highlighting a few of the minds responsible for its products, and describing its three product tiers. The Inspiration series comprises Constellation’s least-expensive models, succeeded by the Performance series, and finally their flagship line, the Reference series. But while the Inspiration models are Constellation’s introductory products, they’re by no means budget, stripped-down, bare-bones offerings. In fact, if I had to pick one word to define the Inspirations -- and in particular the subject of this review, the Inspiration Stereo 1.0 amplifier -- it would be value.

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Kharma Elegance dB9-S Loudspeakers

Written by: Jeff Fritz
Created: 01 August 2016

Kharma International, of the Netherlands, was launched in 1993. However, the audio career of company founder Charles van Oosterum actually began in 1982, with Oosterum Loudspeaker Systems (O.L.S.). It is an understatement to say that van Oosterum has deep experience in high-end audio -- he has many speaker designs to his credit, many of which I’ve heard at Munich’s High End over the last 15 years.

Read more …

  1. Ayre Acoustics AX-5 Twenty Integrated Amplifier
  2. Luxman EQ-500 Phono Stage
  3. fo.Q Modrate HEM-25 Pure Note Insulators
  4. Constellation Audio Inspiration Preamp 1.0 Preamplifier
  5. Zanden Audio Systems Model 3100 Preamplifier
  6. YBA Passion PRE550A DAC-Preamplifier
  7. Skogrand Cables Ravel Speaker Cables and Interconnects
  8. Soulution 560 Digital-to-Analog Converter
  9. Synergistic Research Atmosphere Level 4 Speaker Cables and Interconnects, Atmosphere Level 3 Power Cords, Grounding Block and HD Ground Cables
  10. Merging NADAC ST-2 Digital-to-Analog Converter
  11. Zanden Audio Systems AT-1 Acoustic Tubes and AP-1 Acoustic Panels
  12. Rockport Technologies Cygnus Loudspeakers
  13. Esoteric K-07X SACD/CD Player/DAC
  14. Moon by Simaudio Evolution 850P Preamplifier
  15. Stanford Research Systems PERF10 Rubidium Audio Clock
  16. Wadia di322 Digital-to-Analog Converter
  17. Reference 3A Nefes Loudspeakers
  18. Ayre Acoustics KX-5 Twenty Preamplifier
  19. Nordost Norse 2 Tyr 2 Speaker Cables, Interconnects, and Power Cords
  20. Ayre Acoustics MX-R Twenty Mono Amplifiers
  21. Aqua - Acoustic Quality La Voce S2 Digital-to-Analog Converter
  22. Magico Q7 Mk II Loudspeakers
  23. Highend-AudioPC AudiophileOptimizer Computer Audio Software
  24. Soulution 711 Stereo Amplifier
  25. Rogue Audio RP-5 Preamplifier
  26. Moon by Simaudio Evolution 760A Stereo Amplifier
  27. AudioQuest Cinnamon Ethernet Cable
  28. Spatial Audio Hologram M1 Turbo Loudspeakers
  29. Audio Research Reference 10 Preamplifier
  30. Bryston Middle T Loudspeakers
  31. Vienna Acoustics Imperial Liszt Loudspeakers
  32. Exogal Comet Digital-to-Analog Converter
  33. NAD Masters Series M22 Stereo Amplifier and M12 Preamplifier-DAC
  34. Ascendo C6 Loudspeakers
  35. Hegel Music Systems HD12 Digital-to-Analog Converter
  36. Esoteric Grandioso P1 SACD/CD Transport, Grandioso D1 Mono Digital-to-Analog Converters, and G-01 Master Clock Generator
  37. Blue Circle Audio BC60X1 Power Conditioner
  38. Octave Audio V 110 Integrated Amplifier
  39. JL Audio CR-1 Active Subwoofer Crossover
  40. fo.Q Damping Products and AB-4045 Audio Board Isolation Platform
  41. Devialet 400 Mono Integrated Amplifier-DACs
  42. Audio Research VSi75 Integrated Amplifier
  43. Triangle Magellan Cello Loudspeakers
  44. Audience Au24 SE powerChords, Interconnects, and Speaker Cables
  45. Zanden Audio Systems 120 Phono Stage
  46. Grimm Audio LS1 Loudspeakers and LS1s Subwoofers
  47. Aurender W20 Music Server
  48. Transfiguration Phoenix S Phono Cartridge
  49. M2Tech Young DSD Digital-to-Analog Converter
  50. Audio Research SP20 Preamplifier
  51. Magico S3 Loudspeakers
  52. Synergistic Research High Frequency Transducer (HFT) and Frequency Equalizer (FEQ) Room Treatments and XOT Crossover Transducer
  53. Ayre Acoustics KX-R Twenty Preamplifier
  54. Resonessence Labs Invicta Mirus Digital-to-Analog Converter
  55. Vivid Audio Giya G4 Loudspeakers
  56. Aurender X100L Music Server
  57. Sonus Faber Olympica I Loudspeakers
  58. Clarity Cable Organic Speaker Cables, Interconnects, Digital Interconnect, and Vortex Power Cord
  59. EgglestonWorks Nine Signature Loudspeakers
  60. Light Harmonic LightSpeed USB Cable
  61. David Berning Company ZH-230 Stereo Amplifier
  62. Esoteric Master Sound Works C-02 Preamplifier
  63. Vivid Audio Oval V1.5 Loudspeakers
  64. Daedalus Audio Argos v.2 Loudspeakers
  65. Octave Audio V 70 SE Integrated Amplifier
  66. KR Audio VA910 Mono Amplifiers
  67. T+A Criterion TCD 110 S Loudspeakers
  68. Birch Acoustics Raven Loudspeakers
  69. Monitor Audio Platinum PL200 Loudspeakers
  70. Essential Sound Products Essence Reference-II Power Cords and Reference-II Power Distributor
  71. JE Audio Dyad S400 Stereo Amplifier
  72. Dynamique Audio Celestial Speaker Cables, Zenith Interconnects, Firelight USB, and Infinite Power Cables
  73. Music Culture Elegance MC 501A CD Player-DAC
  74. KR Audio VA340 Mk.II Integrated Amplifier
  75. PMC IB2i Loudspeakers
  76. Cabasse Pacific 3 Loudspeakers
  77. Sonus Faber Venere 3.0 Loudspeakers
  78. Hegel Music Systems HD25 Digital-to-Analog Converter
  79. EMM Labs DAC2X Digital-to-Analog Converter
  80. Esoteric P-02 SACD/CD Transport and D-02 Digital-to-Analog Converter
  81. Vivid Audio Giya G3 Loudspeakers
  82. PBN Audio Scan-Speak B741 Loudspeakers
  83. Blue Circle Audio BC109 Preamplifier
  84. Dynaudio Confidence C2 Signature Loudspeakers
  85. First Watt J2 Stereo Amplifier
  86. Simaudio Moon Evolution 810LP Phono Stage
  87. Boulder Amplifiers 1060 Stereo Amplifier
  88. SMc Audio VRE-1C Reference Preamplifier
  89. Blue Circle Audio NSL Stereo Amplifier
  90. Audio Research Reference 250 Mono Amplifiers
  91. Von Schweikert Audio VR-35 Export Deluxe Loudspeakers
  92. Vitus Audio Signature SM-010 Mono Amplifiers
  93. YG Acoustics Kipod II Signature Loudspeakers
  94. Vandersteen Audio Treo Loudspeakers
  95. Magico Q1 Loudspeakers
  96. Hemingway Audio Prime Reference Mk.II Speaker Cables, Interconnects, and Power Cords
  97. Synergistic Research Element Copper, Tungsten, and Copper-Tungsten-Silver Interconnects and Speaker Cables
  98. Crystal Cable Arabesque Mini Loudspeakers
  99. EgglestonWorks Fontaine Signature Loudspeakers
  100. AudioQuest Diamond and Carbon FireWire 800 Cables
  101. Artos Audio Sunrise Loudspeakers
  102. Esoteric I-03 Integrated Amplifier
  103. NuForce DAC-9 Digital-to-Analog Converter
  104. Audience adeptResponse aR6-TS Power Conditioner
  105. EAR MC 4 Step-Up Transformer
  106. PBN Audio Montana InnerChoic Liberty Loudspeakers
  107. Simple Design Sonore Music Server
  108. Herron Audio VTSP-3A Preamplifier
  109. Copland CDA825 CD Player
  110. TW-Acustic Raven 10.5 Tonearm
  111. Artisan Silver MC Phono Stage
  112. MSB Technology Universal Media Transport
  113. Well Tempered Lab Amadeus Turntable
  114. Purity Audio Design Purity Reference Preamplifier
  115. Silverline Audio Sonatina Mk.IV Loudspeakers
  116. Ayre Acoustics DX-5 Universal A/V Engine
  117. Coda Technologies 15.0 Stereo Amplifier
  118. LessLoss Firewall Power Conditioner and DFPC Signature Power Cable
  119. Miyajima Laboratory Premium BE Mono Cartridge
  120. Magnum Dynalab MD 309 Integrated Amplifier
  121. Audio Research Reference 5 Preamplifier
  122. VAC Phi 200 Stereo Amplifier
  123. Ortofon Cadenza Mono Phono Cartridge
  124. Ultrasone Edition 8 Headphones
  125. YG Acoustics Carmel Loudspeakers
  126. Atma-Sphere Music Amplifier M-60 Mk.3.1 Mono Amplifiers
  127. AudioPrism Ground Control Grounding Cables
  128. Nordost Norse Frey Interconnects and Speaker Cables
  129. Ayre Acoustics KX-R Preamplifier and MX-R Mono Amplifiers
  130. Raysonic SP-300 Integrated Amplifier
  131. Synergistic Research Galileo Universal Interconnect and Speaker Cells, and Mini Power Couplers
  132. VAC Renaissance Mk.3 Preamplifier
  133. Accustic Arts Reference Tube-DAC II SE DAC and Reference Drive II CD Transport
  134. Silent Running Audio VR fp isoBASE Equipment Platforms
  135. EAR 890 Stereo Amplifier

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210x600 T+A R Criterion S (20240601)
Gryphon Audio Essence
 Electrocompaniet - AW300M
Dynaudio Contour 20BE
Vitus Audio
Vitus Audio

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